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1- Department of Chemistry, College of Science, University of Babylon, Babylon, 51002 Iraq
2- Department of Chemistry, College of Science, University of Babylon, Babylon, 51002 Iraq ,sci.mohanad.mousa@uobabylon.edu.iq
2- Department of Chemistry, College of Science, University of Babylon, Babylon, 51002 Iraq ,
Abstract: (2 Views)
Background and Objective: Polyacrylic acid can serve as an effective drug-delivery platform when conjugated with pharmaceutical compounds via a reliable spacer. This study aimed to synthesize and characterize benzidine-linked polyacrylic acid drug conjugates and evaluate their antimicrobial activity.
Materials and Methods: Conjugates were prepared by reacting polyacrylic acid with benzidine, followed by attachment of carboxylic-acid-containing drugs. The resulting polymers were characterized for structural and physicochemical properties. Antibacterial activity against Staphylococcus aureus and Escherichia coli was assessed.
Results: FTIR and ¹HNMR confirmed successful conjugation. Polymers showed pH-dependent drug-release behavior and varying molecular weights. AB1 and AB6 exhibited strong inhibition against S. aureus (20 and 18 mm) and moderate activity against E. coli, while AB2 demonstrated the highest effect against E. coli (28 mm). Most conjugates displayed enhanced antibacterial activity compared to the free drugs.
Conclusion: Spacer-mediated polyacrylic acid drug conjugates effectively modulate drug release and enhance antibacterial performance, highlighting their potential as controlled drug-delivery systems.
Materials and Methods: Conjugates were prepared by reacting polyacrylic acid with benzidine, followed by attachment of carboxylic-acid-containing drugs. The resulting polymers were characterized for structural and physicochemical properties. Antibacterial activity against Staphylococcus aureus and Escherichia coli was assessed.
Results: FTIR and ¹HNMR confirmed successful conjugation. Polymers showed pH-dependent drug-release behavior and varying molecular weights. AB1 and AB6 exhibited strong inhibition against S. aureus (20 and 18 mm) and moderate activity against E. coli, while AB2 demonstrated the highest effect against E. coli (28 mm). Most conjugates displayed enhanced antibacterial activity compared to the free drugs.
Conclusion: Spacer-mediated polyacrylic acid drug conjugates effectively modulate drug release and enhance antibacterial performance, highlighting their potential as controlled drug-delivery systems.
Keywords: Polyacrylic acid, Carboxylic acid pharmaceuticals, Biological activity, Antibacterial, Drug release
Type of Study: Original Research Article |
Subject:
Life Science
Received: 2025/12/3 | Accepted: 2026/02/8
Received: 2025/12/3 | Accepted: 2026/02/8
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